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Nastaran Sohrabifa, Javad Baharara, Naser Mahdavi Shahri, Saeedeh Zafar Balanejad, Elahe Amini,
Volume 3, Issue 1 (6-2016)

Since administration of androgens has been considered appreciable in hair follicle growth and wound healing, therefore the main objective in this study is evaluation the effect of sheep testis extract on improvement and growth of hair follicle and regeneration of injured Wistar rat skin. In this experimental study, rats were randomly divided into 7 groups, control (negative control), sham (treatment with physiologic serum), experimental group 1 (treatment with 100% sheep testis extract), experimental group 2 (treatment with 75% extract), experimental group 3 (treatment with 50% extract), positive control 1 (treatment with honey) for evaluation of wound healing and positive control 2 (treatment with Minoxidil) for evaluation of hair follicle growth. Then, rats were killed after and removed approximate wound skin, fixed in 10% formalin, kept in paraffin block. In addition, it was prepared serial section with 6 µm thickness and performed hematoxylin eosin staining. Then, epidermal thickness, the number of fibroblast, basal cells, inflammatory cells, vessel bud and hair follicle were assessed. Statistical analysis was performed by one way ANOVA, Tukey test at p ˃0.05. The results showed that wound healing process, hair follicle formation, the re-epithelialization, angiogenesis, the number of basal cell, fibroblasts, and the number of follicles was significantly improved in the experimental group 1, 2, rather than control group (p ˃0.05).  Results of this study demonstrated that the sheep testis extract induced improvement in regeneration process, wound healing and hair follicle growth in rats which can be suggested as an appreciable candidate due to rich source of androgen and growth factors in clinical wound healing studies.

Azita Mehrbakhsh, Javad Baharara, Saeedeh Zafar Balanejad, Mohammad Amin Kerachian,
Volume 7, Issue 3 (11-2020)

Electromagnetic waves (EMF) are a mixture of electrical and magnetic waves. The energy transmitted by these radiations is absorbed by living tissues. Electromagnetic fields seem to cause infertility in women. Cannabis is annual herbaceous plant grows in tropical areas. This study was conducted to investigate the protective effects of hydroalcoholic extract of Cannabis sativa in various doses of 50, 100 and 150 mg / kg on the damages induced by electromagnetic fields of 50 Hz and 50 Gauss, on the puberty of ovarian follicles and levels of FSH, LH, estradiol and progesterone hormones in NMRI immature mice. In this study, 48 NMRI immature female mice with an approximate age of 16 days and approximate weight of 18 grams were divided into 8 (experimental, sham, positive control and negative control) groups. After the treatment, the ovaries were extracted and weighed, and sections with H& E staining, the number of primordial, primary, secondary, and atretic follicles were counted, and the level of hormones have been done. The results showed that the concentration of 50 mg / kg of cannabis extract after the exposure to electromagnetic field of 50 Gauss could increase the number of follicles and reduce the number of atresia follicles. The group treated with the concentration of 50 mg / kg of cannabis extract after the exposure to electromagnetic field of 50 Gauss showed increased levels of FSH, LH and estradiol hormones (p <0.01) and a reduced level of progesterone (p <0.01). Therefore, the concentration of 50 mg / kg of cannabis extract have a protective role in preventing infertility due to ovarian tissue damages induced by electromagnetic fields.

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